Oorspronklik: Lyapunov, Sergei. Valse Pensive, Op.20. 1 Piano. Romantic. Waltzes. Dances. For piano. Scores featuring the piano. For 1 player.
Vertaling: Lyapunov, Sergei. Valse Pensive, op.20. 1 Vloer. Romantiese. Walsen. Dances. Vir klavier. Tellings met die klavier. Vir 1 speler.